154009400077 has 8 divisors (see below), whose sum is σ = 165865549976. Its totient is φ = 142154574912.

The previous prime is 154009400063. The next prime is 154009400093. The reversal of 154009400077 is 770004900451.

It can be written as a sum of positive squares in 4 ways, for example, as 1512120996 + 152497279081 = 38886^2 + 390509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154009400077 - 2¹⁹ = 154008875789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154009400477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82818 + ... + 561139.

It is an arithmetic number, because the mean of its divisors is an integer number (20733193747).

Almost surely, 2^154009400077 is an apocalyptic number.

It is an amenable number.

154009400077 is a deficient number, since it is larger than the sum of its proper divisors (11856149899).

154009400077 is a wasteful number, since it uses less digits than its factorization.

154009400077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662367.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 154009400077 in words is "one hundred fifty-four billion, nine million, four hundred thousand, seventy-seven".